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題 名 | 臺南市山坡地竹林資源調查與土地管理之研究=A Case Study of Bamboo Forest Resources and Land Management on Slopeland in Tainan |
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作 者 | 葉銘哲; 鍾智昕; 林謙佑; 林奐宇; | 書刊名 | 臺灣林業科學 |
卷 期 | 31:3 2016.09[民105.09] |
頁 次 | 頁257-269 |
分類號 | 436.289 |
關鍵詞 | 竹林資源; 長枝竹; 莿竹; 臺南市; 龍崎區; Bamboo forest; Long-branch bamboo; Thorny bamboo; Tainan city; Longci district; |
語 文 | 中文(Chinese) |
中文摘要 | 以台南市山坡地(不含國有林事業區)為範圍,整合林務局第四次全國森林資源調查及水土保持局山坡地利用調查成果,再經自行現地調查與航攝影像補充判釋,獲得最新之台南市木竹資源及竹種分布資料。結果顯示全區竹林面積10,254.7 ha、竹闊混淆林面積6,193.7 ha,以龍崎區、六甲區兩地之竹林分布面積最廣,長枝竹(Bambusa dolichoclada)及莿竹(B. stenostachya)則為主要組成種類。另設置94處樣區進行林分密度與結構調查,顯示長枝竹林平均密度為12,397桿/ha,莿竹林平均密度為5,700桿/ha,前者林分密度高、林冠矮且桿徑較小,後者則相對稀疏高大。經與水庫集水區及保安林圖資套疊,發現台南市六甲區竹林資源雖豐,但均位於烏山頭水庫集水區及保安林範圍內,不適合作為竹材伐採生產之區位;龍崎區則不屬水庫集水區範圍,可利用之竹林資源相對完整,純竹林面積達3,167.7 ha,佔全行政區之50.75%,主要分布於私有之山坡地宜農牧地,具有較高的伐採適宜性與生產潛力。但地籍資料分析顯示私有土地零碎化嚴重,不利於竹林之經營管理及採伐,為後續應關注之課題。 |
英文摘要 | We established a workflow to integrate land cover maps from the 4th forest resources inventory project and slopeland utilization inventory project. Based on the latest aerial images, we implemented field work and set up 94 forest plots to reidentify distributions and stocks of bamboo forests in Tainan. Results showed that there are 10,254.7 ha of bamboo forests and 6,193.7 ha of mixed bamboohardwood forests in Tainan, mainly composed of thorny bamboo (Bambusa stenostachya Hack.) and long-branch bamboo (B. dolichoclada Hayata), with Longci and Lioujia districts being distribution centers. The average canopy hight of long-branch bamboo was 11.6 m, which was relatively lower than that of thorny bamboo (15.8 m). The average stem densities of long-branch and thorny bamboo forests were 12,397 and 5,700 culms ha-1. Bamboo forests in Longci District, with a total area of 3,167.7 ha, and representing 50.75% of the administrative area, did not intersect with a reservoir watershed or protected forest. Most of them were private and were located on mild slopeland which is classified as suitable for agriculture or animal husbandry, indicating that these areas could be ideal regions for timber production of bamboo. But the results of cadaster checking showed that the average area and ownership of private land have become more fragmented over the years, and this could have a negative effect on the management and timber production of bamboo forests in the future. |
本系統中英文摘要資訊取自各篇刊載內容。